Press.



PATENTED MAY 12, 1908. H. T. MEYER & G. F. C. LAMAR.

PRESS. APPLICATION FILED APR'. Z2, 1907.

2 SHEETS-SHEET 1.

Fl 7 i WITNESSES: INVENTORS.'

8' a'. @Z. BY

' ATTURNEY.

No. 887,109. l I PATENTED MAY 12, 1908. H. T. MEYER & G. F. C. LAMAR.

PRESS.

APPLIOATION FILED APR.22,1907.

2 SHEETS-SHEET 2.

Y 'UNITED srA'rns FFI@ HENRY T. MEYER AND GEORGE F. C. LAMAR; OF NEWARK, NEW JERSEY, ASSIGNORS TO THE DURANOID MFG..CO., OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.'

Q PRESS.

No. s873109.'`

`Specification of Letters Patent.,^ j Applicationv med Apiil 22,1907; l serial 110,369,559.

Patented May 12, 1908i.

To all whom it may concern:

Be .it known that we, HENRYV T.,MEYER and GEORGE F. O.'LAMAR, citizens of the United States,I resid' at Newark, in the county of Essex andI tate of New Jersey,

'have .invented certain new'and -userul Improvements in Presses; and we do hereby decla-re the following to be a full, clear, and eX- act descr' tionA ofthe invention, such as will enable ot ers skilled in the artto which it appertains to make and' use the same, reference being had to the accompanying'draw-- are used to comphress plastic .material'be-A tween dies' to form ardened compact devices.

In machines of Vthis kind, .when this is done simplyl with a knuckle-joint, it has been -found that if too much material'is placed-,be-

tween the dies there is an excess that cannot l be compressed sufliciently, vand the result has been that there being no way ofregulating the pressure, the .knuckle-jointl has been straightened out, and fractures inthe machines have been causedby this undue strain,

if the amount of material tobe placed betweenthe dies is not accurately estimated.

This device is designed to provide a knucklejoint that when it is alined imparts enough pressure to the material between the dies, or

the material being compressed, to partly form 40 it, and when'the knucklerjoints are alined they are given a longitudinal movement by means o'f a suitable press arranged in the head of the machine,`this `ress bein ,actuated by a com ressed flui and pre erably consisting of a ydraulic press'.

A further object of the invention is to automaticallyfadmit pressure to this hydraulic or other fluid ress, at the instant 'or immediately after t e alinement lof the members making up the knuckle-joint, and'to relieve the vpressure from the press immediately be'- fore the knuckle-joint is broken, so that there is no strain on the machine beyondthe pressure determined to be injected into the hyv draulicor other, press which moves ,the knuckle-jointlongitudinally. j

, The invention is illustrated in the accoml panying drawings, in-which Fi ure 1 is a side view of a machine showi ing t e means for automatically regliilllating the operation ,of the press, the mac e for Vthe purpose of clearness having removed therefrom the means for; operating it, anyy usual means being employed.' Fig. 2 is a top view of the machine, and Fig. 3 is aview of one of the valves for injecting and eXhausting the fluid to and from the press.

Any suitable machine is used in this construction, andwe show'a machine having a bed-plate l0 and a suitable anvil 11. Supt; ports 12 are placed to support a head 13. the head 13 1s a press '14 which has a plunger 15 projectingtherefrom. vThe press 14 can e a compressed air press or a/ hydraulic press, or other similar form' of ressure imparting mechanism.. Underneat and the plunger is a pivotal support 16 which supports the upper end of a pair of arms 1 7 which care pivoted at 18 to form a knucklejoint, the lower end ofthe lower arm 17 being pivotally secured at 19 to 'a sliding or reciprocating member 2O which can have suitthe piston able mechanisms or dies to' cooperate with work required of the mac ne, whether it be forming 'lastic material, cutting, stamping, or any lo the functions to which a machine of this'kind is adapted. On the supports 12 are a pair of bearings 21 which have journale'dtherein a shaft 22, and a air'jy of cams 23'and ,23St are placed onthe s aft 22, and they have, onI theiropposed faces, a cam-slot 24 shown in dotted outline lin Fig. 1, the cam slots operating rollers 25 that are laced on the arm 26 which straddles the sha t 22, and

this arm 26 `projects out and is pivoted between the arms 17, forming the knuckle-j oint at 18, and lthus the knuckle-joint is operated to alternately make and .break it so as to give a reciprocating movement to the member 20. This movement, in"y itself, is the one usually employed in machines of this kind, and iftoo much material is placedunderneath-the mem- ,l ber 20, if it is not' compressible material or compressible only to a slight degree, any eX- cess of material.' getting into the machine causesan vundue strain and results in a breaklage ofthe parts'. To bviatethis difficulty,

l the press 14 is installed, and theconstruction for utilizing the press consists of a pair of levers 27 and 27 having'the rollers 28 andl 2 8 bearing on the cams 23 and 23 respectively, the peripheries of these cams acting to' alternately lower and raise the rollers, one

roller being raised as the other is down, and one going up as the other comes down, so that they are normally in reversed positions.

Fastened to the head 13 is a plate 29 which has valve casings 30 and 30 secured thereto, l each valve having a stem 31 that is operated by either the lever 27 or 27 caused by the rollers 28 and 28, and cams 23 and 23, these levers 27 and 27 bein mounted in suitable standards 32. Each o the valves is made as when the valve disk 34 isv raised bythe valve stem 31 being pushed up, it o ens commumcation between a ort 38, a ove' the valve disk, and a port 39lbelow the same, the valve disk 34, when lowered, normally cutting 0H communication between ythese two ports. Compressed fluid, preferably hydraulic pressure, is led in through a pipe 40 which is connected up in the inlet 38 of the inlet valve casing 30, and when the inlet valve 34 is v raised, communicationis established between the inlet 38 of 'the valve casing 30 and the outlet 39, of the same valve casing, into a pi e 41 which passes up and connects at 42 with the hydraulic or other press. The eX- haust from the press passes out through the pipe 43 and enters the inlet 38 of the outlet va ve casing 30, and the outlet 39 of the valve casing 30 is connected with the exhaust outlet pipe 44 which affords relief to the ress. I

T e cams 23 and 23 are so placed that when the cam slot 24 has just alined the arms 17 of the knuckle-joint, which has imparted part of the necessary pressure to the article eing worked, the cam 23 and the inlet valvev act to raise its roller 28, and the lever 27 will push up the stem 31, inthe inlet valve, and allows pressure from the pipe 40 to pass into the inlet of the valve and out through the outlet of the valve, through the pipe 41 into the hydraulic press. This forces the alined arms 17 down with a predetermined ressure, the outlet valve of the press beingkept closed by the pressure from the press imparted on top of its valve disk 34, thisbeing permitted because at this oint in the rotation the cam 23 of the out et valve permits the lowering of its roller 28.

When the cams have rotated, and just before the arms 17 are broken so as to be placed out of alinement and withdraw the member 20, the cams `23 and 23 arrive at a point to permit the roller 28 ofthe inlet valve casing when the mem 30 to drop, closing the inlet valve, shutting 0E the ressure from the pipe 40, and-confining t e pressure to the press. Simultaneously or immediately after this movement, the cam 23 of the outlet valve casing 30 raises its roller 28 with the lever 27, forces up its valve stem 31 and opens the valve disk 34 of the. outlet valve 30, and the pressure is immediately taken oi of the press 14 and passes out through the pipe 43 and througlh the outlet valve 30, and vescapes through t e pipe 44.

In a hydraulic ress it will be seen that the loss or the use ofp very little water is necessary, each release of the press. The pressure in the machine is regulated by the pressure imparted to the ress, and no excess binding ers 17 are alined, is caused.

Having thus described our invention, what We claim is 1. A press comprising [a knuckle-joint, means for alternately making and breaking the knuckle-joint, a iiuid pressure ress to force the knuckle-joint longitudina ly, and means for automaticallyadmitting fluid under pressure to the ress when the knucklejoint is alined, and or relievi the pressure before the knuckle-joint is bro en.

2. A press comprisinga knuckle-jpint, a fluid pressure press attached to one end of the knuckle-joint, means for making and breaking the knuckle-joint, vvalves for admitting and exhausti Huid to the press, means for openin the inlet valve when the knuckle-joint is a ed, and means for opening the outlet valve when the knuckle-Joint is about to be broken.

3. A press comprising a support, a head thereon, a fluid pressure press 1n the head, a

mechanical pressing device of limited movement suspended from the head, and means for automatically forcing the pressing device when it has gone to its limit of movement, and relievingthe forcing before the pressing device is relaxed.

4. A press comprising a support, a head thereon, a fluid pressure press 1n the head, ja knuckle-joint suspended from the head, a pipe system to convey iiuid to and from the press, a pair of cams for forcing the knuckleas but a small quantity will escape at Joint into and outof alinement, an arm connecting the cams and the knuckle-joint, and valves in the pi e system, the knuckle-,joint operating cams a atin the valves to orce the knuckle-joint longitudinally by means of the ress, when the knuckle-jointis alined, and or relieving the forcing before the knuckle-joint is broken.

cam surfacesfor actuj= 5. A press comprising a support, a head thereon, a iiuid pressure press in the head, a plunger in the press, a knuckle-joint suspended from the plunger, grooves in their opposed faces, a roller .in the grooves, an arm. carrying the rollers and piva pair of cams with;

oted to the knuckle-joint to make and break exhaust valve When the Iknuckle-joint is about to be broken. v

6. A press comprising a support, a fluid pressure press suspended therein, a plunger 1n the pressure press, a knuckle-jolnt suspended from the lunger, a air of cams for making and brea 'ng the pair of valves mounted on the-head, one an inlet and the other an outlet valve for the fluid pressure press, cam surfaces on the uokle-joint, a

peripheries of the cams, rollers ridin on the peripheries, levers supporting the rol ers and ivoted to the support, a stem in each valve or operating it and each stem resting on a lever, and pipes connecting the valves to the 20 fluid pressure press.

In testimony, that We claim the foregoing, We have hereunto set our hands this 20th day of April 1907.

HENRY T. MEYER.

GEORGE F. C. LAMAR.

Witnesses: i L

WM. H. CAMFIELD, E. A. PELL. 

